Top part of screen missing in Mupen64

In Mupen64plus part of the top of the screen are missing when I tried saving state. Games I tried are:

(San Francisco Rush 2049) blue border blocks top part of screen when using save state. (Mario 64) can see flickering on top but return to normal (Banjo Kazooie) top section cuts off entirely

I’m using Retroarch 1.7.7 (Mupen64plus) core setting are at (default) except (4:3 internal resolution) if I set this higher than (1920x1440) the glitch happens. This does not happen in 1.7.4 even with resolution past 1920x1440